Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube

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	Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube
	Yan Ying 1; Jin Wei 2; Cao Mingzhou 2
刊名	ACTA METALLURGICA SINICA
	2008-02-01
卷号	44 期号:2 页码:139-144
关键词	Ni47Ti44Nb9 shape memory alloy cold-rolled tube microstructure texture phase transformation
ISSN号	0412-1961
通讯作者	Yan Ying(yingyan@imp.neu.edu.cn)
英文摘要	The microstructures, textures and phase transformations in forged bar, hot-extruded tube, and cold-rolled tubes at different heat-treated conditions of Ni47Ti44Nb9 alloy were investigated by OM, DSC and XRD. The results show that 132 phase in the forged rod has broad fibred shape, and main textures are close to {112} < 111 > and {123} < 111 >; Fibred microstructure in the hot-extruded tube is refined, and the orientations of many grains are close to {111} < UVW >; B2 phase fibres in the cold-rolled tube have been heavily broken, which restrains martensitic phase transformation during cooling, and {111}< 110 > and {112} < 110 > become the major textures. With the increase of quenching temperature, hardness of the cold-rolled tube decreases, M. and A. points increase, thermal hysteresis drops. The above textures in the cold-tube annealed at 600 V for 90 min markedly enhance. When the annealing temperature is 850 V, the recrystallized grains in the cold-rolled tube obviously grow, M,, point markedly increases, thermal hysteresis and hardness decrease, the main textures depart from {111} < 110 > and {112} < 110 >.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000253792500003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/94135]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yan Ying
作者单位	1.Northeastern Univ, Inst Mat Phys & Chem, Shenyang 110004, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yan Ying,Jin Wei,Cao Mingzhou. Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube[J]. ACTA METALLURGICA SINICA,2008,44(2):139-144.
APA	Yan Ying,Jin Wei,&Cao Mingzhou.(2008).Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube.ACTA METALLURGICA SINICA,44(2),139-144.
MLA	Yan Ying,et al."Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube".ACTA METALLURGICA SINICA 44.2(2008):139-144.